Analysis
- max time kernel
150s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
06/11/2022, 01:02
General
- Target file.exe
- Size 286KB
- Sample221106-bdsfpschem
- SHA256 4e0762cb19cda0037ceca9c904ef0fb2f0f2443127d49a92170eb6a0ce337ce9
Malware Config
Extracted
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djvu
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http://fresherlights.com/lancer/get.php
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extension
.zate
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offline_id
VW11mMMPfxPTr0epvPSw1m6GBzcKFb3H2Lm2nyt1
-
payload_url
http://uaery.top/dl/build2.exe
http://fresherlights.com/files/1/build3.exe
-
ransomnote
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Extracted
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redline
-
Mast1000
-
78.153.144.3:2510
-
auth_value
8e868b09fa3921a313a9a4fa08602f0a
Signatures
- Detected Djvu ransomware 11 IoCs
- Detects Smokeloader packer 3 IoCs
- Djvu Ransomware
Ransomware which is a variant of the STOP family.
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 1 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 2 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 13 IoCs
- Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 4 IoCs
- Modifies file permissions 1 TTPs 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses 2FA software files, possible credential harvesting 2 TTPs
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 10 IoCs
- Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Checks processor information in registry 2 TTPs 44 IoCs
Processor information is often read in order to detect sandboxing environments.
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Delays execution with timeout.exe 1 IoCs
- Modifies Internet Explorer settings 1 TTPs 4 IoCs
- Modifies registry class 19 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 64 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\10B9.exeC:\Users\Admin\AppData\Local\Temp\10B9.exe1⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQA1AA==2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\1241.exeC:\Users\Admin\AppData\Local\Temp\1241.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\1241.exeC:\Users\Admin\AppData\Local\Temp\1241.exe2⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\eb319e44-5fd9-48c6-ae0a-340e26d32b70" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
-
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C:\Users\Admin\AppData\Local\Temp\1241.exe"C:\Users\Admin\AppData\Local\Temp\1241.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\1241.exe"C:\Users\Admin\AppData\Local\Temp\1241.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\31abb5a3-c825-4b82-8f6c-9a6653a6486a\build3.exe"C:\Users\Admin\AppData\Local\31abb5a3-c825-4b82-8f6c-9a6653a6486a\build3.exe"5⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"6⤵
- Creates scheduled task(s)
-
-
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-
-
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\1455.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\1455.dll2⤵
- Loads dropped DLL
-
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C:\Users\Admin\AppData\Local\Temp\15AE.exeC:\Users\Admin\AppData\Local\Temp\15AE.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\1774.exeC:\Users\Admin\AppData\Local\Temp\1774.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4712 -s 3402⤵
- Program crash
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-
C:\Users\Admin\AppData\Local\Temp\1A24.exeC:\Users\Admin\AppData\Local\Temp\1A24.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 3402⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\1CE4.exeC:\Users\Admin\AppData\Local\Temp\1CE4.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 2522⤵
- Program crash
-
-
C:\Users\Admin\AppData\Local\Temp\1FC4.exeC:\Users\Admin\AppData\Local\Temp\1FC4.exe1⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\1FC4.exe" & exit2⤵
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C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 18842⤵
- Program crash
-
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4712 -ip 47121⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4372 -ip 43721⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 4364 -ip 43641⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3900 -ip 39001⤵
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\BFFC.exeC:\Users\Admin\AppData\Local\Temp\BFFC.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Checks processor information in registry
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#612⤵
- Blocklisted process makes network request
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 5802⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 10082⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 10082⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 10602⤵
- Program crash
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#612⤵
- Checks processor information in registry
- Modifies registry class
- Suspicious use of FindShellTrayWindow
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 10842⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 10122⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1188 -ip 11881⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1188 -ip 11881⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1188 -ip 11881⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1188 -ip 11881⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1188 -ip 11881⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 624 -p 1188 -ip 11881⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
mozglue.dll
nss3.dll
sqlite3.dll
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
build3.exe
build3.exe
10B9.exe
10B9.exe
1241.exe
1241.exe
1241.exe
1241.exe
1241.exe
1455.dll
1455.dll
15AE.exe
15AE.exe
1774.exe
1774.exe
1A24.exe
1A24.exe
1CE4.exe
1CE4.exe
1FC4.exe
1FC4.exe
BFFC.exe
BFFC.exe
Wffwew.tmp
1241.exe
mstsca.exe
mstsca.exe
memory/856-172-0x0000000000730000-0x000000000073C000-memory.dmp
memory/1000-259-0x0000000000770000-0x0000000000773000-memory.dmp
memory/1000-258-0x0000000000760000-0x0000000000763000-memory.dmp
memory/1000-260-0x0000000000770000-0x0000000000773000-memory.dmp
memory/1188-265-0x0000000003250000-0x0000000003DB0000-memory.dmp
memory/1188-253-0x000000000256C000-0x000000000268E000-memory.dmp
memory/1188-254-0x0000000002790000-0x0000000002A5C000-memory.dmp
memory/1188-255-0x0000000000400000-0x0000000000958000-memory.dmp
memory/1188-263-0x0000000003250000-0x0000000003DB0000-memory.dmp
memory/1188-256-0x0000000000400000-0x0000000000958000-memory.dmp
memory/1188-262-0x0000000000400000-0x0000000000958000-memory.dmp
memory/1188-264-0x0000000003250000-0x0000000003DB0000-memory.dmp
memory/1188-252-0x0000000000400000-0x0000000000958000-memory.dmp
memory/1188-282-0x0000000000400000-0x0000000000958000-memory.dmp
memory/1188-266-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/1188-267-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/1188-268-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/1188-269-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/1188-270-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/1188-271-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/1188-272-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/1188-273-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/2164-246-0x0000000005600000-0x000000000563C000-memory.dmp
memory/2164-242-0x0000000000400000-0x0000000000428000-memory.dmp
memory/2164-243-0x0000000005B10000-0x0000000006128000-memory.dmp
memory/2164-244-0x0000000005670000-0x000000000577A000-memory.dmp
memory/2164-245-0x00000000055A0000-0x00000000055B2000-memory.dmp
memory/2164-247-0x0000000006E60000-0x0000000007022000-memory.dmp
memory/2164-248-0x0000000007560000-0x0000000007A8C000-memory.dmp
memory/3104-159-0x0000000006680000-0x00000000066A2000-memory.dmp
memory/3104-158-0x0000000006C00000-0x00000000071A4000-memory.dmp
memory/3104-139-0x0000000000F60000-0x0000000000F7A000-memory.dmp
memory/3104-155-0x00000000065B0000-0x0000000006642000-memory.dmp
memory/3244-240-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3244-219-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3244-214-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3244-212-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3308-225-0x00000000031E0000-0x0000000003293000-memory.dmp
memory/3308-223-0x0000000003110000-0x00000000031D7000-memory.dmp
memory/3308-224-0x00000000031E0000-0x0000000003293000-memory.dmp
memory/3308-168-0x0000000002FD0000-0x000000000310E000-memory.dmp
memory/3308-227-0x0000000002FD0000-0x000000000310E000-memory.dmp
memory/3308-167-0x0000000002D40000-0x0000000002E81000-memory.dmp
memory/3548-184-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3548-181-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3548-175-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3548-206-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3548-177-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3748-171-0x0000000000D40000-0x0000000000DAB000-memory.dmp
memory/3748-170-0x0000000001000000-0x0000000001075000-memory.dmp
memory/3748-182-0x0000000000D40000-0x0000000000DAB000-memory.dmp
memory/3856-180-0x0000000002620000-0x000000000273B000-memory.dmp
memory/3856-179-0x0000000000A50000-0x0000000000AE1000-memory.dmp
memory/3900-197-0x00000000024E0000-0x0000000002539000-memory.dmp
memory/3900-233-0x00000000008C8000-0x00000000008F5000-memory.dmp
memory/3900-236-0x0000000000400000-0x0000000000861000-memory.dmp
memory/3900-228-0x0000000000400000-0x0000000000861000-memory.dmp
memory/3900-201-0x00000000008C8000-0x00000000008F5000-memory.dmp
memory/3900-198-0x0000000000400000-0x0000000000861000-memory.dmp
memory/3904-185-0x00000000008F0000-0x00000000009F0000-memory.dmp
memory/3904-187-0x0000000000400000-0x000000000084B000-memory.dmp
memory/3904-186-0x0000000000880000-0x0000000000889000-memory.dmp
memory/3904-202-0x0000000000400000-0x000000000084B000-memory.dmp
memory/4364-196-0x0000000000400000-0x000000000084A000-memory.dmp
memory/4364-195-0x0000000000AC8000-0x0000000000ADE000-memory.dmp
memory/4372-193-0x00000000008E0000-0x00000000008E9000-memory.dmp
memory/4372-194-0x0000000000400000-0x000000000084B000-memory.dmp
memory/4372-192-0x000000000095A000-0x0000000000970000-memory.dmp
memory/4652-213-0x0000000000B73000-0x0000000000C04000-memory.dmp
memory/4704-278-0x0000000003FB0000-0x00000000040F0000-memory.dmp
memory/4704-277-0x0000000003FB0000-0x00000000040F0000-memory.dmp
memory/4704-279-0x0000000003FB0000-0x00000000040F0000-memory.dmp
memory/4704-275-0x0000000003450000-0x0000000003FB0000-memory.dmp
memory/4704-280-0x0000000003FB0000-0x00000000040F0000-memory.dmp
memory/4704-276-0x0000000000E60000-0x00000000018A0000-memory.dmp
memory/4704-281-0x0000000003450000-0x0000000003FB0000-memory.dmp
memory/4712-188-0x0000000000400000-0x000000000084A000-memory.dmp
memory/4712-191-0x0000000000878000-0x000000000088D000-memory.dmp
memory/4852-190-0x0000000005780000-0x00000000057E6000-memory.dmp
memory/4852-189-0x0000000005710000-0x0000000005776000-memory.dmp
memory/4852-200-0x0000000005CB0000-0x0000000005CCE000-memory.dmp
memory/4852-183-0x0000000004F60000-0x0000000005588000-memory.dmp
memory/4852-178-0x0000000000BC0000-0x0000000000BF6000-memory.dmp
memory/4852-207-0x00000000074E0000-0x0000000007B5A000-memory.dmp
memory/4852-208-0x00000000061A0000-0x00000000061BA000-memory.dmp
memory/5060-132-0x0000000000B5B000-0x0000000000B70000-memory.dmp
memory/5060-135-0x0000000000400000-0x000000000084B000-memory.dmp
memory/5060-134-0x0000000000400000-0x000000000084B000-memory.dmp
memory/5060-133-0x0000000000AA0000-0x0000000000AA9000-memory.dmp